The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2024
Filed:
Mar. 08, 2017
Chuo Hatsujo Kabushiki Kaisha, Nagoya, JP;
Shinto Paint Co., Ltd., Amagasaki, JP;
Takayuki Okamoto, Nagoya, JP;
Yasuhiko Kunita, Nagoya, JP;
Shota Otsuka, Amagasaki, JP;
Masaki Kannami, Amagasaki, JP;
CHUO HATSUJO KABUSHIKI KAISHA, Nagoya, JP;
SHINTO PAINT CO., LTD., Amagasaki, JP;
Abstract
A highly durable spring of the present invention includes a single-layer coating film with a thickness of 450 μm or less, in which the coating film contains an epoxy resin, a phenolic resin, and zinc. The coating film has high corrosion resistance and chipping resistance even if it is a one thin layer with a thickness of 450 μm or less. A method of coating a highly durable spring of the present invention includes an application process in which an epoxy resin-based powder coating material which contains an epoxy resin, a phenolic resin, and zinc and is produced by a melt kneading method is applied to a surface of a spring on which a coating-film is formed and a baking process in which the applied epoxy resin-based powder coating material is baked.